Here is a re-spin after some comments after an internal review and some testing on
OMAP4 with device OFF support.
Implement the functional states for the power domains:
- unify the API to use the functional states,
- protect the power domain state change by a mutex in
omap_set_pwrdm_state,
- introduce the functional states for power domains power states and
logic power states, and the conversion functions between the
functional and internal states,
- program the logic power state of power domains from the functional
states, in omap_set_pwrdm_state
- convert the OMAP2/3/4 PM code to use the updated API,
- provide the power domains statistics by functional states,
- provide ftrace tracepoints with the functional state.
Based on mainline kernel 3.5.0-rc2.
Tested on OMAP3 Beagleboard, with suspend and cpuidle in RET and
OFF modes.
History:
v4:
- reworked the code after internal review and testing with OMAP3&4 device
OFF,
- fixed the tracepoints generation code,
- introduce a function that returns power domains achievable functional
states, in order to return a valid state for power domains that only
support some of the power states. Although it has been tested OK the
code is in RFC state.
v3:
- fix a bug in OMAP3 cpuidle which prevented the IO wake-ups in PER
v2:
- add the logic power states,
- provide the power domains statistics by functional states
v1:
- initial implementation, in RFC state
Jean Pihet (8):
ARM: OMAP2+: PM: protect the power domain state change by a mutex
ARM: OMAP2+: PM: introduce power domains functional states
ARM: OMAP2+: PM: use the functional power states API
ARM: OMAP2+: PM: introduce power domains logic and memory functional
states
ARM: OMAP2+: PM: introduce power domains achievable functional states
ARM: OMAP2+: PM: use the functional power states API for logic and
memory
ARM: OMAP2+: PM: use power domain functional state in stats counters
ARM: OMAP2+: PM debug: trace the functional power domains states
arch/arm/mach-omap2/cpuidle34xx.c | 61 +++---
arch/arm/mach-omap2/cpuidle44xx.c | 28 +--
arch/arm/mach-omap2/omap-hotplug.c | 2 +-
arch/arm/mach-omap2/omap-mpuss-lowpower.c | 39 ++--
arch/arm/mach-omap2/pm-debug.c | 15 +-
arch/arm/mach-omap2/pm.c | 62 -----
arch/arm/mach-omap2/pm.h | 1 -
arch/arm/mach-omap2/pm24xx.c | 15 +-
arch/arm/mach-omap2/pm34xx.c | 78 +++---
arch/arm/mach-omap2/pm44xx.c | 18 +-
arch/arm/mach-omap2/powerdomain-common.c | 100 ++++++++
arch/arm/mach-omap2/powerdomain.c | 367 ++++++++++++++++++++++++++--
arch/arm/mach-omap2/powerdomain.h | 101 ++++++--
arch/arm/mach-omap2/powerdomain2xxx_3xxx.c | 7 +
arch/arm/mach-omap2/powerdomain44xx.c | 3 +
15 files changed, 653 insertions(+), 244 deletions(-)
--
1.7.7.6
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